# Portable Charger 4smarts Slim Lithium Polymer (LiPo) 20000 mAh

**URL:** https://aio.lv/en/product--4smarts-540622--11038395
**Data updated:** 2026-01-14 13:08 (EET)
**Category:** Power Banks
**Manufacturer:** 4smarts
**Manufacturer code:** 540622
**EAN:** 4252011907069
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 66.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 55.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--4smarts-540622--11038395

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The 4smarts Slim Lithium Polymer (LiPo) portable charger features a high capacity of 20000 mAh, ensuring your devices stay powered on the go. With Adaptive Fast Charging and Quick Charge 3.0 technology, it delivers rapid charging at a voltage of 20 V. Its sleek grey design makes it both stylish and functional, perfect for everyday use.

## Long description

The 4smarts Portable Charger Slim Lithium Polymer (LiPo) 20000 mAh is a high-capacity power bank designed to provide extended runtime for smartphones, tablets and other USB-powered devices. Its slim grey housing combines portability with a large 20000 mAh battery capacity, supporting Adaptive Fast Charging and Quick Charge 3.0 for faster energy delivery. The unit supports charging up to two devices simultaneously and is compatible with a wide range of devices thanks to universal charger compatibility.
Advantages
The slim LiPo construction reduces bulk while keeping significant energy storage, making it convenient for travel and daily commuting. Adaptive Fast Charging and Quick Charge 3.0 technologies enable reduced charging times for supported devices and the dual-output capability lets you charge two devices at once. The neutral grey finish offers a discreet, professional appearance and the charger’s universal compatibility ensures it works with most USB-powered electronics.
Suitable for
 Charging smartphones and phablets during travel or long days away from outlets
 Powering tablets and small USB devices for work or entertainment
 Keeping wearable devices and Bluetooth accessories charged on the go
 Backup power during commuting, meetings and short trips
Key specifications
 Battery capacity: 20000 mAh
 Battery type: Lithium Polymer (LiPo)
 Maximum simultaneous outputs: 2 devices
 Charging technologies: Adaptive Fast Charging, Quick Charge 3.0
 Output voltage capability: up to 20 V for fast charging modes
 Product colour: Grey
 Weight: 0.55 kg
 Compatibility: universal USB-powered device compatibility
How to use
Connect the portable charger to a power source using a compatible USB cable to recharge the internal LiPo battery. When the power bank is charged, connect your device using the appropriate USB cable to one of the outputs. If charging two devices, use both outputs and verify the devices accept the adaptive or Quick Charge profile for faster charging. Monitor the power bank’s charge indicators (if present) and recharge the unit before long trips to ensure maximum availability.
Usage recommendations
For optimal battery health, avoid exposing the power bank to extreme temperatures and fully depleting it repeatedly. Use manufacturer-recommended cables and charge supported devices with Quick Charge or Adaptive Fast Charging enabled to benefit from faster charging speeds. Store the unit partially charged if not used for extended periods.

## Specifications

### Packaging content

| Feature | Value |
|---|---|
| Cables included | USB Type-C |
| Carrying case | Yes |

### Design

| Feature | Value |
|---|---|
| LED indicators | Y |
| Product colour | Grey |
| Housing material | ABS, Polycarbonate (PC) |
| Charger compatibility | Universal |
| Built-in display | Yes |
| Display type | LED |
| Shape | Rectangle |
| Number of simultaneously connected devices (max) | 2 |
| Power bank & device charging at once | Yes |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Battery capacity | 20000 mAh |

### Performance

| Feature | Value |
|---|---|
| Number of battery cells | 4 |
| Battery voltage | 20 V |
| Fast charging | Yes |
| Charging source | USB |
| Built-in radio | No |
| Fast charging technology | Adaptive Fast Charging, Quick Charge 3.0 |
| USB Power Delivery up to | 122.5 W |

### Ports & interfaces

| Feature | Value |
|---|---|
| Input interface | USB Type-C |

### Power

| Feature | Value |
|---|---|
| Input voltage | 5 |
| Output voltage | 20 |
| Input current | 3 |
| Port 1 output power | 22.5 W |
| Port 2 output power | 100 W |
| Port 3 output power | 100 W |
| Port 4 output power | 22.5 W |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.55 kg |
| Height | 18 mm |
| Width | 180 mm |
| Depth | 140 mm |
| USB Type-C cable length | 500 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 580 g |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 0.5 year(s) |

## FAQ

### How much does the Portable Charger 4smarts Slim 540622 cost, and is it available for purchase?

The price is 66.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 4smarts products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 4smarts service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: battery capacity, number of simultaneously connected devices (max), weight, product colour, charger compatibility, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11038395/65653010_large.webp